Lomiri Download Manager API

\chapterIntroduction

The application lifecycle model of found in Lomiri Touch does not ensure that application will be allowed to perform a long running connection to a server in order to perform a download. The Lomiri Download Manager is a system daemon that leverages the long connections required to perform downloads from the click applications and provides a set of APIs for the application to interact with the downloads.

The download manager is a centralized daemon and therefore must ensure that only those applications

Security

The download manager is a centralized daemon that can be used by all those applications that are allows to use the networking apparmor profile, due to this fact the downloading daemon ensures that the interaction with a download can only be performed either by the application that originally created the download or by an application that is not confined and that can therefore interact with all the daemons of the application.

Once a download has been created the download manager will ensure that the data being downloaded is stored in a location that can only be accessed by the creating application to ensure that the app confinement is kept.

Components

Available through:

import Lomiri.DownloadManager 1.2

• DownloadManager
• SingleDownload
• Metadata

Example usage - Downloading a file

import QtQuick 2.0
import Lomiri.Components 1.2
import Lomiri.DownloadManager 1.2

Rectangle {
    width: units.gu(100)
    height: units.gu(20)

    TextField {
        id: text
        placeholderText: "File URL to download..."
        height: 50
        anchors {
            left: parent.left
            right: button.left
            rightMargin: units.gu(2)
        }
    }

    Button {
        id: button
        text: "Download"
        height: 50
        anchors.right: parent.right

        onClicked: {
            single.download(text.text);
        }
    }

    ProgressBar {
        minimumValue: 0
        maximumValue: 100
        value: single.progress
        anchors {
            left: parent.left
            right: parent.right
            bottom: parent.bottom
        }

        SingleDownload {
            id: single
        }
    }
}

\partReporting Bugs If you find any problems with the module or this documentation, please file a bug in the Lomiri Download Manager Launchpad page